./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:06:03,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:06:03,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:06:03,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:06:03,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:06:03,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:06:03,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:06:03,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:06:03,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:06:03,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:06:03,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:06:03,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:06:03,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:06:03,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:06:03,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:06:03,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:06:03,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:06:03,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:06:03,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:06:03,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:06:03,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:06:03,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:06:03,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:06:03,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:06:03,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:06:03,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:06:03,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:06:03,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:06:03,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:06:03,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:06:03,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:06:03,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:06:03,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:06:03,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:06:03,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:06:03,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:06:03,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:06:03,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:06:03,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:06:03,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:06:03,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:06:03,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:06:04,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:06:04,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:06:04,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:06:04,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:06:04,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:06:04,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:06:04,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:06:04,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:06:04,013 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:06:04,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:06:04,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:06:04,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:06:04,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:06:04,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:06:04,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:06:04,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:06:04,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:06:04,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:06:04,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:06:04,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:06:04,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:06:04,016 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:06:04,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:06:04,017 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:06:04,017 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d [2022-12-13 12:06:04,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:06:04,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:06:04,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:06:04,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:06:04,200 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:06:04,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2022-12-13 12:06:06,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:06:06,925 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:06:06,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2022-12-13 12:06:06,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/data/ef1ece909/9d987540b56a4edf9dfb518ce43e0484/FLAG842a055c9 [2022-12-13 12:06:07,326 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/data/ef1ece909/9d987540b56a4edf9dfb518ce43e0484 [2022-12-13 12:06:07,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:06:07,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:06:07,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:06:07,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:06:07,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:06:07,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0834a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07, skipping insertion in model container [2022-12-13 12:06:07,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:06:07,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:06:07,457 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c[1605,1618] [2022-12-13 12:06:07,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:06:07,532 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:06:07,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c[1605,1618] [2022-12-13 12:06:07,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:06:07,588 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:06:07,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07 WrapperNode [2022-12-13 12:06:07,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:06:07,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:06:07,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:06:07,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:06:07,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,619 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2022-12-13 12:06:07,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:06:07,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:06:07,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:06:07,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:06:07,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:06:07,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:06:07,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:06:07,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:06:07,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (1/1) ... [2022-12-13 12:06:07,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:06:07,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:06:07,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:06:07,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:06:07,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:06:07,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 12:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 12:06:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 12:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 12:06:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 12:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 12:06:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 12:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 12:06:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 12:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 12:06:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-13 12:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-13 12:06:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-13 12:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-13 12:06:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 12:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 12:06:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:06:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 12:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 12:06:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:06:07,766 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:06:07,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:06:07,992 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:06:08,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:06:08,001 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:06:08,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:06:08 BoogieIcfgContainer [2022-12-13 12:06:08,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:06:08,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:06:08,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:06:08,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:06:08,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:06:07" (1/3) ... [2022-12-13 12:06:08,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a37614a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:06:08, skipping insertion in model container [2022-12-13 12:06:08,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:07" (2/3) ... [2022-12-13 12:06:08,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a37614a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:06:08, skipping insertion in model container [2022-12-13 12:06:08,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:06:08" (3/3) ... [2022-12-13 12:06:08,013 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2022-12-13 12:06:08,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:06:08,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:06:08,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:06:08,087 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f8ca85e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:06:08,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 12:06:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-13 12:06:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 12:06:08,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:08,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:08,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:08,104 INFO L85 PathProgramCache]: Analyzing trace with hash -320439114, now seen corresponding path program 1 times [2022-12-13 12:06:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078399441] [2022-12-13 12:06:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 12:06:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:06:08,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:08,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078399441] [2022-12-13 12:06:08,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078399441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:08,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:08,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:06:08,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248542895] [2022-12-13 12:06:08,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:08,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:06:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:06:08,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:06:08,314 INFO L87 Difference]: Start difference. First operand has 102 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:08,350 INFO L93 Difference]: Finished difference Result 195 states and 264 transitions. [2022-12-13 12:06:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:06:08,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-12-13 12:06:08,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:08,360 INFO L225 Difference]: With dead ends: 195 [2022-12-13 12:06:08,361 INFO L226 Difference]: Without dead ends: 93 [2022-12-13 12:06:08,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:06:08,367 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:08,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:06:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-13 12:06:08,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-13 12:06:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 76 states have internal predecessors, (89), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-13 12:06:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 120 transitions. [2022-12-13 12:06:08,410 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 120 transitions. Word has length 25 [2022-12-13 12:06:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:08,410 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 120 transitions. [2022-12-13 12:06:08,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 120 transitions. [2022-12-13 12:06:08,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 12:06:08,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:08,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:08,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:06:08,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1934434610, now seen corresponding path program 1 times [2022-12-13 12:06:08,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:08,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689583134] [2022-12-13 12:06:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 12:06:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:06:08,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:08,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689583134] [2022-12-13 12:06:08,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689583134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:08,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:08,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:06:08,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949027444] [2022-12-13 12:06:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:08,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:06:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:06:08,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:06:08,510 INFO L87 Difference]: Start difference. First operand 93 states and 120 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:08,526 INFO L93 Difference]: Finished difference Result 147 states and 189 transitions. [2022-12-13 12:06:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:06:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-12-13 12:06:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:08,528 INFO L225 Difference]: With dead ends: 147 [2022-12-13 12:06:08,528 INFO L226 Difference]: Without dead ends: 84 [2022-12-13 12:06:08,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:06:08,529 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:08,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:06:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-13 12:06:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-12-13 12:06:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 70 states have internal predecessors, (82), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 12:06:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2022-12-13 12:06:08,537 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 26 [2022-12-13 12:06:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:08,538 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2022-12-13 12:06:08,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2022-12-13 12:06:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 12:06:08,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:08,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:08,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:06:08,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:08,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:08,540 INFO L85 PathProgramCache]: Analyzing trace with hash -172475024, now seen corresponding path program 1 times [2022-12-13 12:06:08,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:08,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585668775] [2022-12-13 12:06:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:08,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:06:08,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:08,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585668775] [2022-12-13 12:06:08,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585668775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:08,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:08,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:06:08,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393099950] [2022-12-13 12:06:08,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:08,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:06:08,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:06:08,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:06:08,644 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:08,820 INFO L93 Difference]: Finished difference Result 278 states and 365 transitions. [2022-12-13 12:06:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:06:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-12-13 12:06:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:08,822 INFO L225 Difference]: With dead ends: 278 [2022-12-13 12:06:08,822 INFO L226 Difference]: Without dead ends: 202 [2022-12-13 12:06:08,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:06:08,824 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 286 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:08,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 468 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:06:08,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-13 12:06:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 196. [2022-12-13 12:06:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 161 states have internal predecessors, (194), 31 states have call successors, (31), 21 states have call predecessors, (31), 21 states have return successors, (32), 23 states have call predecessors, (32), 31 states have call successors, (32) [2022-12-13 12:06:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 257 transitions. [2022-12-13 12:06:08,854 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 257 transitions. Word has length 30 [2022-12-13 12:06:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:08,855 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 257 transitions. [2022-12-13 12:06:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 257 transitions. [2022-12-13 12:06:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 12:06:08,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:08,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:08,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:06:08,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:08,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1019876102, now seen corresponding path program 1 times [2022-12-13 12:06:08,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:08,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295990950] [2022-12-13 12:06:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:08,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 12:06:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:06:08,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:08,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295990950] [2022-12-13 12:06:08,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295990950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:08,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:08,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:06:08,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900103736] [2022-12-13 12:06:08,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:08,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:06:08,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:06:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:06:08,937 INFO L87 Difference]: Start difference. First operand 196 states and 257 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:09,006 INFO L93 Difference]: Finished difference Result 486 states and 649 transitions. [2022-12-13 12:06:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:06:09,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-12-13 12:06:09,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:09,008 INFO L225 Difference]: With dead ends: 486 [2022-12-13 12:06:09,009 INFO L226 Difference]: Without dead ends: 298 [2022-12-13 12:06:09,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:06:09,010 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 68 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:09,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 408 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:06:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-12-13 12:06:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 281. [2022-12-13 12:06:09,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 206 states have (on average 1.2912621359223302) internal successors, (266), 225 states have internal predecessors, (266), 40 states have call successors, (40), 34 states have call predecessors, (40), 34 states have return successors, (50), 37 states have call predecessors, (50), 40 states have call successors, (50) [2022-12-13 12:06:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 356 transitions. [2022-12-13 12:06:09,034 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 356 transitions. Word has length 34 [2022-12-13 12:06:09,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:09,034 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 356 transitions. [2022-12-13 12:06:09,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:06:09,034 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 356 transitions. [2022-12-13 12:06:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 12:06:09,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:09,036 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:09,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:06:09,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:09,036 INFO L85 PathProgramCache]: Analyzing trace with hash 936234583, now seen corresponding path program 1 times [2022-12-13 12:06:09,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:09,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570628269] [2022-12-13 12:06:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 12:06:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:06:09,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:09,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570628269] [2022-12-13 12:06:09,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570628269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:09,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:09,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:06:09,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970862947] [2022-12-13 12:06:09,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:09,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:06:09,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:06:09,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:06:09,138 INFO L87 Difference]: Start difference. First operand 281 states and 356 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 12:06:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:09,398 INFO L93 Difference]: Finished difference Result 917 states and 1223 transitions. [2022-12-13 12:06:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 12:06:09,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2022-12-13 12:06:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:09,403 INFO L225 Difference]: With dead ends: 917 [2022-12-13 12:06:09,403 INFO L226 Difference]: Without dead ends: 644 [2022-12-13 12:06:09,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:06:09,405 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 212 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 415 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:06:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-12-13 12:06:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 551. [2022-12-13 12:06:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 413 states have (on average 1.271186440677966) internal successors, (525), 440 states have internal predecessors, (525), 73 states have call successors, (73), 61 states have call predecessors, (73), 64 states have return successors, (105), 71 states have call predecessors, (105), 73 states have call successors, (105) [2022-12-13 12:06:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 703 transitions. [2022-12-13 12:06:09,476 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 703 transitions. Word has length 56 [2022-12-13 12:06:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:09,477 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 703 transitions. [2022-12-13 12:06:09,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 12:06:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 703 transitions. [2022-12-13 12:06:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 12:06:09,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:09,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:09,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:06:09,480 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1008621141, now seen corresponding path program 1 times [2022-12-13 12:06:09,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:09,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009292029] [2022-12-13 12:06:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:09,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 12:06:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:06:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:09,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009292029] [2022-12-13 12:06:09,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009292029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:09,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:09,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:06:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161059381] [2022-12-13 12:06:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:09,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:06:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:06:09,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:06:09,574 INFO L87 Difference]: Start difference. First operand 551 states and 703 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 12:06:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:09,746 INFO L93 Difference]: Finished difference Result 1128 states and 1479 transitions. [2022-12-13 12:06:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:06:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-12-13 12:06:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:09,749 INFO L225 Difference]: With dead ends: 1128 [2022-12-13 12:06:09,749 INFO L226 Difference]: Without dead ends: 585 [2022-12-13 12:06:09,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:06:09,752 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 67 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:09,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 358 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:06:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-12-13 12:06:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 563. [2022-12-13 12:06:09,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 425 states have (on average 1.2635294117647058) internal successors, (537), 452 states have internal predecessors, (537), 73 states have call successors, (73), 61 states have call predecessors, (73), 64 states have return successors, (105), 71 states have call predecessors, (105), 73 states have call successors, (105) [2022-12-13 12:06:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 715 transitions. [2022-12-13 12:06:09,784 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 715 transitions. Word has length 56 [2022-12-13 12:06:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:09,784 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 715 transitions. [2022-12-13 12:06:09,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 12:06:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 715 transitions. [2022-12-13 12:06:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 12:06:09,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:09,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:09,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:06:09,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1710221015, now seen corresponding path program 1 times [2022-12-13 12:06:09,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:09,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125207861] [2022-12-13 12:06:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 12:06:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:06:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:09,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125207861] [2022-12-13 12:06:09,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125207861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:09,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:09,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:06:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597486344] [2022-12-13 12:06:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:06:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:06:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:06:09,853 INFO L87 Difference]: Start difference. First operand 563 states and 715 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 12:06:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:09,977 INFO L93 Difference]: Finished difference Result 1025 states and 1320 transitions. [2022-12-13 12:06:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:06:09,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-12-13 12:06:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:09,979 INFO L225 Difference]: With dead ends: 1025 [2022-12-13 12:06:09,979 INFO L226 Difference]: Without dead ends: 470 [2022-12-13 12:06:09,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:06:09,981 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 70 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:09,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 279 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:06:09,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-12-13 12:06:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-12-13 12:06:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 348 states have (on average 1.2442528735632183) internal successors, (433), 370 states have internal predecessors, (433), 60 states have call successors, (60), 50 states have call predecessors, (60), 53 states have return successors, (77), 58 states have call predecessors, (77), 60 states have call successors, (77) [2022-12-13 12:06:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 570 transitions. [2022-12-13 12:06:10,009 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 570 transitions. Word has length 56 [2022-12-13 12:06:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:10,010 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 570 transitions. [2022-12-13 12:06:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 12:06:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 570 transitions. [2022-12-13 12:06:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 12:06:10,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:10,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:10,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:06:10,011 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:10,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:10,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1960917517, now seen corresponding path program 1 times [2022-12-13 12:06:10,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:10,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020795210] [2022-12-13 12:06:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:10,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 12:06:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 12:06:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 12:06:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:06:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:10,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020795210] [2022-12-13 12:06:10,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020795210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:10,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:10,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 12:06:10,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407455164] [2022-12-13 12:06:10,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:10,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:06:10,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:06:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:06:10,160 INFO L87 Difference]: Start difference. First operand 462 states and 570 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:06:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:10,808 INFO L93 Difference]: Finished difference Result 1546 states and 1978 transitions. [2022-12-13 12:06:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 12:06:10,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2022-12-13 12:06:10,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:10,812 INFO L225 Difference]: With dead ends: 1546 [2022-12-13 12:06:10,812 INFO L226 Difference]: Without dead ends: 1092 [2022-12-13 12:06:10,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 12:06:10,814 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 430 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:10,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 490 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 12:06:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-12-13 12:06:10,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 916. [2022-12-13 12:06:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 673 states have (on average 1.213967310549777) internal successors, (817), 728 states have internal predecessors, (817), 132 states have call successors, (132), 100 states have call predecessors, (132), 110 states have return successors, (196), 120 states have call predecessors, (196), 132 states have call successors, (196) [2022-12-13 12:06:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1145 transitions. [2022-12-13 12:06:10,861 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1145 transitions. Word has length 60 [2022-12-13 12:06:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:10,861 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1145 transitions. [2022-12-13 12:06:10,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:06:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1145 transitions. [2022-12-13 12:06:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 12:06:10,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:10,865 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:10,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:06:10,865 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2119698815, now seen corresponding path program 1 times [2022-12-13 12:06:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979106989] [2022-12-13 12:06:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 12:06:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 12:06:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 12:06:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 12:06:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 12:06:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 12:06:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:06:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 12:06:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 12:06:10,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:10,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979106989] [2022-12-13 12:06:10,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979106989] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:06:10,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879923467] [2022-12-13 12:06:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:10,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:06:10,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:06:10,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:06:10,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:06:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:06:11,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:06:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 12:06:11,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:06:11,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879923467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:11,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:06:11,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2022-12-13 12:06:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950216572] [2022-12-13 12:06:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:11,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:06:11,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:06:11,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:06:11,139 INFO L87 Difference]: Start difference. First operand 916 states and 1145 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:11,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:11,240 INFO L93 Difference]: Finished difference Result 1934 states and 2534 transitions. [2022-12-13 12:06:11,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:06:11,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-12-13 12:06:11,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:11,248 INFO L225 Difference]: With dead ends: 1934 [2022-12-13 12:06:11,248 INFO L226 Difference]: Without dead ends: 1270 [2022-12-13 12:06:11,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:06:11,252 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 34 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:11,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:06:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-12-13 12:06:11,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1260. [2022-12-13 12:06:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 927 states have (on average 1.215749730312837) internal successors, (1127), 994 states have internal predecessors, (1127), 180 states have call successors, (180), 146 states have call predecessors, (180), 152 states have return successors, (315), 172 states have call predecessors, (315), 180 states have call successors, (315) [2022-12-13 12:06:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1622 transitions. [2022-12-13 12:06:11,360 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1622 transitions. Word has length 108 [2022-12-13 12:06:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:11,360 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 1622 transitions. [2022-12-13 12:06:11,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1622 transitions. [2022-12-13 12:06:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 12:06:11,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:11,366 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:11,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:06:11,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:06:11,567 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:11,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:11,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1442265401, now seen corresponding path program 1 times [2022-12-13 12:06:11,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:11,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427020594] [2022-12-13 12:06:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:11,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 12:06:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 12:06:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 12:06:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 12:06:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 12:06:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 12:06:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 12:06:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 12:06:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:06:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 12:06:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 12:06:11,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:11,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427020594] [2022-12-13 12:06:11,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427020594] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:06:11,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152602193] [2022-12-13 12:06:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:11,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:06:11,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:06:11,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:06:11,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:06:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:11,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 12:06:11,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:06:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 12:06:12,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:06:12,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152602193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:12,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:06:12,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 21 [2022-12-13 12:06:12,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934025279] [2022-12-13 12:06:12,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:12,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:06:12,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:12,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:06:12,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:06:12,009 INFO L87 Difference]: Start difference. First operand 1260 states and 1622 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:12,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:12,193 INFO L93 Difference]: Finished difference Result 2516 states and 3248 transitions. [2022-12-13 12:06:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:06:12,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2022-12-13 12:06:12,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:12,198 INFO L225 Difference]: With dead ends: 2516 [2022-12-13 12:06:12,198 INFO L226 Difference]: Without dead ends: 1264 [2022-12-13 12:06:12,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:06:12,202 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 997 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:06:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-12-13 12:06:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1260. [2022-12-13 12:06:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 927 states have (on average 1.1995685005393744) internal successors, (1112), 994 states have internal predecessors, (1112), 180 states have call successors, (180), 146 states have call predecessors, (180), 152 states have return successors, (278), 172 states have call predecessors, (278), 180 states have call successors, (278) [2022-12-13 12:06:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1570 transitions. [2022-12-13 12:06:12,291 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1570 transitions. Word has length 112 [2022-12-13 12:06:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:12,291 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 1570 transitions. [2022-12-13 12:06:12,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:12,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1570 transitions. [2022-12-13 12:06:12,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 12:06:12,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:06:12,296 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:12,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:06:12,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 12:06:12,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:06:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1331262979, now seen corresponding path program 1 times [2022-12-13 12:06:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:12,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551619495] [2022-12-13 12:06:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:12,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 12:06:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 12:06:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 12:06:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:06:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 12:06:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 12:06:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 12:06:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 12:06:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 12:06:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:06:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 12:06:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,723 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 12:06:12,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:12,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551619495] [2022-12-13 12:06:12,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551619495] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:06:12,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213524723] [2022-12-13 12:06:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:12,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:06:12,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:06:12,725 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:06:12,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:06:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:12,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 12:06:12,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:06:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 12:06:12,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:06:12,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213524723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:12,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:06:12,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2022-12-13 12:06:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387772441] [2022-12-13 12:06:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:12,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:06:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:06:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-12-13 12:06:12,894 INFO L87 Difference]: Start difference. First operand 1260 states and 1570 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:06:13,083 INFO L93 Difference]: Finished difference Result 2202 states and 2778 transitions. [2022-12-13 12:06:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:06:13,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-12-13 12:06:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:06:13,084 INFO L225 Difference]: With dead ends: 2202 [2022-12-13 12:06:13,084 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 12:06:13,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-12-13 12:06:13,089 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 74 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:06:13,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1143 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:06:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 12:06:13,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 12:06:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 12:06:13,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2022-12-13 12:06:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:06:13,090 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:06:13,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 12:06:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:06:13,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 12:06:13,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 12:06:13,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:06:13,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 12:06:13,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 12:06:16,944 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 818 825) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 818 825) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 818 825) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 734 740) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 734 740) the Hoare annotation is: true [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point L640-1(lines 636 647) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 636 647) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 (= 0 ~systemActive~0)) (or .cse0 .cse2 .cse1) (or (<= 1 ~methaneLevelCritical~0) .cse2 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 636 647) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L895 garLoopResultBuilder]: At program point L787(line 787) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0))) (let ((.cse8 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (not .cse1)) (.cse11 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (not .cse11)) (.cse2 (and .cse6 .cse7 .cse11 .cse9 .cse10)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not .cse8)) (.cse5 (and .cse6 .cse7 .cse8 .cse9 .cse10))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2) (or .cse3 .cse4 .cse5) (or .cse4 .cse5 .cse1))))) [2022-12-13 12:06:16,945 INFO L895 garLoopResultBuilder]: At program point L787-1(lines 768 792) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse5))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse4) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (<= 2 ~waterLevel~0) .cse2 .cse5)))) [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point L721-1(lines 721 727) no Hoare annotation was computed. [2022-12-13 12:06:16,945 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 710 733) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 496) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 499) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L895 garLoopResultBuilder]: At program point L482-1(lines 474 502) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse3 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or (and .cse0 .cse3) .cse4 .cse2 (and .cse3 (<= 2 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3)) (or .cse5 (and .cse6 (not .cse2)) (and .cse0 .cse3 .cse6) .cse4) (or .cse5 (and .cse0 .cse6) .cse1))) [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L714-1(lines 713 732) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L776(lines 776 784) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 493) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 789) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 50 57) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3) (or .cse2 .cse0) (or .cse3 .cse1))) [2022-12-13 12:06:16,946 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 710 733) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (and (= ~pumpRunning~0 0) .cse6)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse4 .cse0) (or .cse5 .cse1 .cse2)))) [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L616(lines 616 620) no Hoare annotation was computed. [2022-12-13 12:06:16,946 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 612 623) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4) (or .cse0 .cse3) (or .cse2 .cse1 .cse4))) [2022-12-13 12:06:16,946 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and .cse0 .cse4)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 (not .cse2)) .cse5 .cse6) (or .cse3 .cse5 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (<= 2 ~waterLevel~0) .cse6 .cse2)))) [2022-12-13 12:06:16,946 INFO L899 garLoopResultBuilder]: For program point L480-1(line 480) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L895 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3) (or .cse2 .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse1))) [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 710 733) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L895 garLoopResultBuilder]: At program point L778(line 778) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3 (and .cse4 (<= 1 |timeShift_processEnvironment_~tmp~6#1|))) (or .cse0 .cse2) (or .cse4 .cse1 .cse3))) [2022-12-13 12:06:16,947 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 837 845) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or (and .cse2 .cse3) .cse4 .cse5) (or .cse0 .cse4 (and .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 .cse5))) [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L895 garLoopResultBuilder]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4) (or .cse0 .cse3) (or .cse2 .cse1 .cse4))) [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point L774-1(line 774) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L902 garLoopResultBuilder]: At program point L512(line 512) the Hoare annotation is: true [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 506 535) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point L512-1(line 512) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L902 garLoopResultBuilder]: At program point L531(lines 506 535) the Hoare annotation is: true [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2022-12-13 12:06:16,947 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 506 535) the Hoare annotation is: true [2022-12-13 12:06:16,947 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 524) no Hoare annotation was computed. [2022-12-13 12:06:16,948 INFO L902 garLoopResultBuilder]: At program point L520-1(lines 520 524) the Hoare annotation is: true [2022-12-13 12:06:16,948 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2022-12-13 12:06:16,948 INFO L902 garLoopResultBuilder]: At program point L516-2(lines 516 530) the Hoare annotation is: true [2022-12-13 12:06:16,948 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 648 656) the Hoare annotation is: true [2022-12-13 12:06:16,948 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 648 656) no Hoare annotation was computed. [2022-12-13 12:06:16,948 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 648 656) no Hoare annotation was computed. [2022-12-13 12:06:16,948 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 571 581) the Hoare annotation is: true [2022-12-13 12:06:16,948 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-12-13 12:06:16,948 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 73 79) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 12:06:16,948 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 582 604) the Hoare annotation is: true [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L928(lines 927 974) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 970) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L895 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse1 .cse2 (not (= 0 ~systemActive~0))))) [2022-12-13 12:06:16,949 INFO L902 garLoopResultBuilder]: At program point L978(lines 917 982) the Hoare annotation is: true [2022-12-13 12:06:16,949 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 563 569) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 943) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 933) no Hoare annotation was computed. [2022-12-13 12:06:16,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L895 garLoopResultBuilder]: At program point L975(lines 926 976) the Hoare annotation is: false [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 80 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 911) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point L905-1(lines 905 911) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 969) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L895 garLoopResultBuilder]: At program point L963-2(lines 957 970) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse3 .cse2 .cse4) (and .cse1 .cse2 .cse4))) [2022-12-13 12:06:16,950 INFO L895 garLoopResultBuilder]: At program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 466 473) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2022-12-13 12:06:16,950 INFO L895 garLoopResultBuilder]: At program point stopSystem_returnLabel#1(lines 901 915) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1))) [2022-12-13 12:06:16,951 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 599) no Hoare annotation was computed. [2022-12-13 12:06:16,951 INFO L899 garLoopResultBuilder]: For program point L592-2(lines 592 599) no Hoare annotation was computed. [2022-12-13 12:06:16,951 INFO L895 garLoopResultBuilder]: At program point L972(lines 927 974) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse1 .cse2 (not (= 0 ~systemActive~0))))) [2022-12-13 12:06:16,951 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 87 95) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 12:06:16,951 INFO L895 garLoopResultBuilder]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse1 .cse2 (not (= 0 ~systemActive~0))))) [2022-12-13 12:06:16,951 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 624 635) no Hoare annotation was computed. [2022-12-13 12:06:16,951 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 624 635) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= 0 ~systemActive~0)) (or .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse2 .cse0 .cse1))) [2022-12-13 12:06:16,951 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 624 635) no Hoare annotation was computed. [2022-12-13 12:06:16,952 INFO L895 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0))) (.cse4 (not (= ~waterLevel~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~8#1|))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse5 .cse3) (or .cse2 .cse6 .cse3) (or .cse4 .cse6 .cse5 .cse3))) [2022-12-13 12:06:16,952 INFO L899 garLoopResultBuilder]: For program point L750(lines 750 758) no Hoare annotation was computed. [2022-12-13 12:06:16,952 INFO L895 garLoopResultBuilder]: At program point activatePump__wrappee__highWaterSensor_returnLabel#1(lines 793 800) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (<= 2 ~waterLevel~0) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-13 12:06:16,952 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 763) no Hoare annotation was computed. [2022-12-13 12:06:16,952 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 742 766) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-13 12:06:16,952 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 814) no Hoare annotation was computed. [2022-12-13 12:06:16,952 INFO L895 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-12-13 12:06:16,952 INFO L895 garLoopResultBuilder]: At program point L808-2(lines 801 817) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~7#1| ~methaneLevelCritical~0) .cse0) (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-12-13 12:06:16,952 INFO L899 garLoopResultBuilder]: For program point L806-1(line 806) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L895 garLoopResultBuilder]: At program point isHighWaterSensorDry_returnLabel#1(lines 689 702) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= ~pumpRunning~0 0)) (.cse10 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0)) (.cse11 (<= 2 ~waterLevel~0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and .cse4 .cse6 .cse10 .cse11)) (.cse0 (not .cse11)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (and .cse6 .cse10 .cse11)) (.cse5 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|)) (.cse9 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse1 .cse2 .cse3) (or .cse7 .cse8 .cse0 .cse9 .cse3) (or .cse7 .cse8 (and .cse5 .cse6) .cse9 .cse3)))) [2022-12-13 12:06:16,953 INFO L895 garLoopResultBuilder]: At program point isHighWaterLevel_returnLabel#1(lines 882 900) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse0 (and (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1| 0) .cse3 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) .cse4 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~8#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0))) (.cse1 (and .cse3 .cse4 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2)))) [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 895) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point L891-2(lines 891 895) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L895 garLoopResultBuilder]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point L761-1(lines 742 766) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 699) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 742 766) no Hoare annotation was computed. [2022-12-13 12:06:16,953 INFO L902 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: true [2022-12-13 12:06:16,953 INFO L899 garLoopResultBuilder]: For program point L831-1(line 831) no Hoare annotation was computed. [2022-12-13 12:06:16,954 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 826 836) no Hoare annotation was computed. [2022-12-13 12:06:16,954 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 826 836) the Hoare annotation is: true [2022-12-13 12:06:16,954 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 826 836) no Hoare annotation was computed. [2022-12-13 12:06:16,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:16,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:06:16,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:06:16 BoogieIcfgContainer [2022-12-13 12:06:16,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:06:16,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:06:16,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:06:16,974 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:06:16,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:06:08" (3/4) ... [2022-12-13 12:06:16,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:06:16,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-13 12:06:16,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-13 12:06:16,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-13 12:06:16,982 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-13 12:06:16,989 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-13 12:06:16,989 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 12:06:16,989 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:06:16,990 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:06:16,990 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:06:17,007 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-12-13 12:06:17,007 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 [2022-12-13 12:06:17,007 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 [2022-12-13 12:06:17,008 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((pumpRunning == \old(pumpRunning) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical))) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-12-13 12:06:17,008 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || !(methaneLevelCritical == 0)) && ((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || !(1 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-12-13 12:06:17,008 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive) && (((((pumpRunning == 0 && tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((pumpRunning == 0 && \result == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (!(methaneLevelCritical == 0) || 0 == systemActive) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= waterLevel) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && 2 <= waterLevel)) || 0 == systemActive) && (((((pumpRunning == \old(pumpRunning) && 1 <= \result) && pumpRunning == 0) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && 2 <= waterLevel)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && 2 <= waterLevel)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical))) && (!(methaneLevelCritical == 0) || 0 == systemActive) [2022-12-13 12:06:17,009 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && pumpRunning == 0) && 1 <= tmp) && \result == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-12-13 12:06:17,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:06:17,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:06:17,025 INFO L158 Benchmark]: Toolchain (without parser) took 9695.89ms. Allocated memory was 121.6MB in the beginning and 207.6MB in the end (delta: 86.0MB). Free memory was 86.8MB in the beginning and 146.3MB in the end (delta: -59.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,025 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:06:17,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.31ms. Allocated memory is still 121.6MB. Free memory was 86.8MB in the beginning and 68.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.09ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 66.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,025 INFO L158 Benchmark]: Boogie Preprocessor took 19.07ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,026 INFO L158 Benchmark]: RCFGBuilder took 363.96ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 64.3MB in the beginning and 143.1MB in the end (delta: -78.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,026 INFO L158 Benchmark]: TraceAbstraction took 8967.38ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 142.4MB in the beginning and 152.6MB in the end (delta: -10.2MB). Peak memory consumption was 126.1MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,026 INFO L158 Benchmark]: Witness Printer took 50.26ms. Allocated memory is still 207.6MB. Free memory was 152.6MB in the beginning and 146.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 12:06:17,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.31ms. Allocated memory is still 121.6MB. Free memory was 86.8MB in the beginning and 68.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.09ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 66.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.07ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.96ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 64.3MB in the beginning and 143.1MB in the end (delta: -78.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8967.38ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 142.4MB in the beginning and 152.6MB in the end (delta: -10.2MB). Peak memory consumption was 126.1MB. Max. memory is 16.1GB. * Witness Printer took 50.26ms. Allocated memory is still 207.6MB. Free memory was 152.6MB in the beginning and 146.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1363 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1325 mSDsluCounter, 5141 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3757 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1747 IncrementalHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 1384 mSDtfsCounter, 1747 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 558 GetRequests, 442 SyntacticMatches, 3 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1260occurred in iteration=9, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 336 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 3039 PreInvPairs, 3614 NumberOfFragments, 1441 HoareAnnotationTreeSize, 3039 FomulaSimplifications, 709 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 46 FomulaSimplificationsInter, 26349 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 999 NumberOfCodeBlocks, 999 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 985 ConstructedInterpolants, 0 QuantifiedInterpolants, 1694 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1082 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 265/284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 901]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && splverifierCounter == 0) || ((pumpRunning == 0 && 1 <= methaneLevelCritical) && splverifierCounter == 0) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 768]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || !(methaneLevelCritical == 0)) && ((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || !(1 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical))) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive) && (((((pumpRunning == 0 && tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && !(0 == systemActive))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((pumpRunning == 0 && \result == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: (((((!(2 <= waterLevel) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && 2 <= waterLevel)) || 0 == systemActive) && (((((pumpRunning == \old(pumpRunning) && 1 <= \result) && pumpRunning == 0) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && 2 <= waterLevel)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && 2 <= waterLevel)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 612]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((pumpRunning == \old(pumpRunning) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical))) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && splverifierCounter == 0) || ((pumpRunning == 0 && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || ((methaneLevelCritical == 0 && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((((((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && pumpRunning == 0) && 1 <= tmp) && \result == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 12:06:17,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e8ccce5-8330-4ce7-87ae-115d320990fa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE